2026-05-27 04:23 |
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The Diagrammar of Quantum Magnusian
/ Guo, Li (Rutgers U., Piscataway) ; Kim, Joon-Hwi (Caltech) ; Kim, Jung-Wook (CERN) ; Kim, Sungsoo (Seoul Natl. U.) ; Lee, Sangmin (Korea Inst. Advanced Study, Seoul) ; Li, Jian-Rong (Vienna U., Dept. Math.)
The logarithm of the time-evolution operator has been termed Magnusian, on account of the fact that its expansion describes the Magnus series. [...]
CALT-TH-2026-020 ; CERN-TH-2026-115 ; KIAS-P26031 ; arXiv:2605.25473.
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2026-05-23 04:19 |
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2026-05-21 21:23 |
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2026-05-21 21:23 |
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2026-05-19 04:13 |
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2026-05-19 04:10 |
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2026-05-13 04:43 |
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2026-05-12 04:10 |
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2026-05-09 04:02 |
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Perturbative, Nonperturbative and Exact Aspects of Crystalline Phases in the Gross-Neveu Model
/ Benini, Francesco (SISSA, Trieste ; INFN, Trieste) ; Mamroud, Ohad (SISSA, Trieste ; INFN, Trieste) ; Reis, Tomas (CERN) ; Serone, Marco (SISSA, Trieste ; INFN, Trieste)
We study the crystalline phase of the $O(2N)$ Gross--Neveu model with a chemical potential for $a \leq N-2$ of the fermions. [...]
CERN-TH-2026-102 ; arXiv:2605.05307.
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2026-05-08 04:09 |
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Heterotic String Theory Suggests a QCD Axion Near 0.5 neV
/ Benabou, Joshua N. (LBL, Berkeley ; UC, Berkeley) ; Dainelli, Giulio Alvise (LBL, Berkeley ; UC, Berkeley) ; Reig, Mario (CERN) ; Safdi, Benjamin R. (LBL, Berkeley ; UC, Berkeley)
We show that in heterotic string theory -- and dual corners of the landscape including Type I string theory -- the QCD axion mass is bounded from below by $m_a \gtrsim 0.5$ neV, a direct consequence of the model-independent axion whose decay constant is fixed by the grand unified theory (GUT) gauge coupling. [...]
CERN-TH-2026-098 ; arXiv:2605.04142.
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